cross-platform compress & decompress
gizmotron at earthlink.net
Mon Dec 1 18:36:59 CST 2003
On Monday, December 1, 2003, at 04:15 PM, Monte Goulding wrote:
> Try compressing an decompressing the whole file to see if some stage
> in your
> parsing is corrupting the compressed data. Richard's suggestion of
> then base64Encode is also appropriate for binary data in an XML
I have tried compressing and decompressing the whole file as the first
test. I tried compressing the data from a variable as a second test.
I've looked at the same data in a text editor on both platforms and I
did a comparison of charToNum() of the compressed data on both
platforms. This was the exact same problem I had with blowfish I think.
I solved it by constricting cross-platform data transfers to less than
ascii 127; even though the data can represent up to ascii 255. My
blowfish algorithm does it all as numerical values until the final
rendering. I had to drop binaryEncode() & binaryDecode() in order to
get numerical only results within the process. That's why I think it's
something like upper ascii character values across platforms.
So can you compress this: "abcdefghijklmnopqrstuvwxyz1234567890" on a
Mac, save it as binary on a Mac, and open & decompress it on a Windows
machine? I need to see a basic text file that I can decompress on Mac &
Windows. \ mb
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